1. Pervasive Computing Research Unit http://p-comp.di.uoa.gr Presentation of Research Activities University of Athens Department of Informatics & Telecommunications December 2011

2. Pervasive Computing Research Unit ~ 20 members (faculty, Ph.D. candidates, postdoctoral researchers, M.Sc. and B.Sc. students) Research Unit within NKUA Communications Network Lab (http://cnl.di.uoa.gr) Web site: http://p-comp.di.uoa.gr

3. Research Interests Many different aspects of Pervasive Computing Context-aware and location-based services (modeling, middleware, applications, smart spaces) Ontology-based knowledge engineering with Semantic Web technologies Algorithmic issues in Pervasive Computing (e.g., Game Theory, Optimal Stopping Theory, Statistical Learning, Epidemical Diffusion, PSO - context prediction, compression, diffusion) Wireless Sensor Networks (middleware + information management, sensor data fusion) Trust management architectures for autonomic networks Personalized Multimedia Communications, intelligent services and middleware ……

4. PoLoS: An integrated platform for location-based services IST STREP Project – http://polos.di.uoa.gr Middleware for creation, deployment and provision of LBS Portable, scalable and platform-independent solution for LBS lifecycle management Complex business models Connects to GIS, positioning servers and other network facilities (SMS Gateways) through open APIs (Parlay-X)

5. Polysema: Semantics-based multimedia applications framework Based on a smart residential gateway for user- oriented multimedia content presentation (DVB, Web, VoD) Integrates multimedia meta-data and semantics (MPEG-7 & Semantic Web) Extract semantic information from subtitles Uses Semantic Web technologies (OWL) for user- oriented multimedia content retrieval and presentation Modeling and managing user profile & preferences Supports MHP applications and APIs (Internet-based systems)

6. MNISIKLIS: Universal LBS for Indoor Environments National project Adopts a pure user-centered perspective (e.g., LBS services for disabled/elderly people) Semantic Web technologies used for modeling and reasoning about: Location, users, devices, content presentation Rich positioning infrastructure: Dead reckoning, passive RFID, WiFi positioning Multimodal and adaptive user interfaces: Voice directions, textual directions, maps, …

7. SCIER: Sensor and Computing Infrastructure for Environmental Risks

8. SCIER details IST project on the management of natural hazards at the Urban-Rural-Interface (URI) Real-time monitoring of environmental phenomena Key technologies: Autonomic sensor networks Information fusion techniques Mathematical and GIS-based environmental models GRID infrastructure for efficient data analysis Alerting and communication systems WWW site: http://www.scier.euhttp://www.scier.eu

9. IPAC: Integrated Platform for Autonomic Computing FP7 ICT Project Middleware and service creation environment for embedded, intelligent, collaborative, context-aware services in mobile nodes IPAC scope: diverse applications in a collaborative nomadic environment Humanitarian Relief Operations Industrial Environments Intelligent Transportations IPAC services are supported by knowledge and ontology engineering techniques, dealing with interoperability, integration, and re- configuration/adaptation issues WWW site: http://ipac.di.uoa.gr/http://ipac.di.uoa.gr/

10. IPAC Environment RN ED End Device RN Relaying Node

11. Humanitarian Relief Operations E.g. Obstacle/Hazardous area avoidance Road availability, movement control Chemical detection, Ice alert

12. IDIRA Project FP7 – SEC Project, 2011-2014, 18 partners Interoperability of data and procedures in large-scale multinational disaster response actions IDIRA Scope: provide an integrated solution to support large-scale international cooperation in emergency situations Outcome: set of tools, interfaces and procedures Trial Scenarios: flood, earthquake/fire, pandemic WWW site: http://www.idira.eu/http://www.idira.eu/

13. IDIRA Concept “a conceptual framework that supports and augments regionally available emergency management capacities with a flexibly deployable Mobile Integrated Command and control Structure (MICS), which aims at supporting co-ordinated large-scale disaster management”

14. IDIRA Ecosystem

15. Other Activities Knowledge management and reasoning in embedded devices Machine learning Machine Vision Indoor positioning systems Applications in healthcare (pervasive healthcare), geo-sciences, etc. Multimodal and adaptive interfaces Research testbed development (WLAN, indoor/outdoor positioning, Sensor platform).

16. Lab Equipment Short Range Communication platforms High- and low-frame rate cameras/vision sensors Weather stations Sunspots, Xbox Motes, CSEM WiseNodes mini DSP units RFID readers & IRDA Beacons DVB-T distribution server and STB middleware platform

17. Indicative publications… C. Anagnostopoulos, S. Hadjiefthymiades, P. Georgas, "PC3: Principal Component- based Context Compression - Improving Energy Efficiency in Wireless Sensor Networks", Journal of Parallel and Distributed Computing, to appear, Elsevier, October, 2011 Christos Anagnostopoulos, Stathes Hadjiefthymiades, Evangelos Zervas, "Information Dissemination between Mobile Nodes for Collaborative Context Awareness", IEEE Transactions on Mobile Computing (vol. 99), IEEE, August, 2011 Christos Anagnostopoulos, Odysseas Sekkas, Stathes Hadjiefthymiades, "An Adaptive Epidemic Information Dissemination Model for Wireless Sensor Networks", Elsevier, Pervasive and Mobile Computing Journal, Elsevier (to appear), Elsevier, August, 2011 G. Alyfantis, S. Hadjiefthyiades, and L. Merakos, "Exploiting User Location for Load Balancing WLANs and Improving Wireless QoS", ACM Transactions on Autonomous and Adaptive Systems (TAAS), 4(2),, May, 2009 C. Anagnostopoulos and S. Hadjiefthymiades, "Enhancing Situation Aware Systems through Imprecise Reasoning", in the IEEE Transactions on Mobile Computing (TMC), vol. 7, no. 9, September 2008.